BenchmarksGB

Find and log OS benchmarks

USD 2.99 · Designed for iPad

A new app to help identify and log Ordnance Survey benchmarks BenchmarksGB: Discover, Identify & Log Britain’s Ordnance Survey Benchmarks. Whether you’re a keen walker, a history lover, or simply enjoy exploring Britain’s hidden details, BenchmarksGB turns every outing into a mini treasure hunt. BenchmarksGB is the easiest way to spot, learn about, and record the historic Ordnance Survey benchmarks scattered across Great Britain. These engraved marks - used to measure height above sea level before modern surveying - can still be found on older buildings, bridges, churches, and walls all around the country. There are over 500,000 of them listed in the Ordnance Survey archive. Using data from this archive, BenchmarksGB displays benchmark locations on an interactive map, helping you find them while out walking, exploring, or travelling. With the app you can: • See benchmark locations using detailed OS archive data • Record your visits and mark whether each benchmark is still present • Track your progress as you spot more across the country • Add an extra layer of fun to your walks and holidays

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Improved instructions

Version 1.0.2

The developer, SailTrack Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary based, for example, on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    • Provider
      • SailTrack Limited
    • Size
      • 70.2 MB
    • Category
      • Entertainment
    • Compatibility
      Requires iOS 18.4 or later.
      • iPhone
        Requires iOS 18.4 or later.
      • iPad
        Requires iPadOS 18.4 or later.
      • Mac
        Requires macOS 15.4 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 2.4 or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2025 SailTrack Ltd
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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